South Carolina home charging cost for the 2026 Rivian R1S All-Terrain Dual Large (20in)

In South Carolina, home electricity runs 16.04¢/kWh — put a 2026 Rivian R1S All-Terrain Dual Large (20in)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $7.12, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 55.6% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1S All-Terrain Dual Large (20in) costs roughly $1,067 a year to charge at home in South Carolina, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,336 a year.

What one full charge costs

Covering the 2026 Rivian R1S All-Terrain Dual Large (20in)'s EPA-rated 289-mile range takes about 128.2 kWh, which costs about $20.56 at South Carolina's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 13,319 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Dual Large (20in) alone ranks 344 of 400 models for efficiency; South Carolina alone ranks 27 of 51 states for electricity price.

Before you install a home charger in South Carolina

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Ask a licensed South Carolina electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Large (20in)'s cost in South Carolina. Curious how South Carolina's 16.04¢/kWh compares? The guide to charging cost by state ranks every state side by side.